diff options
Diffstat (limited to 'net/bridge/br_stp.c')
| -rw-r--r-- | net/bridge/br_stp.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index 80c34d70218c..f7e8dee64fc8 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -600,12 +600,17 @@ void __br_set_forward_delay(struct net_bridge *br, unsigned long t) int br_set_forward_delay(struct net_bridge *br, unsigned long val) { unsigned long t = clock_t_to_jiffies(val); - - if (t < BR_MIN_FORWARD_DELAY || t > BR_MAX_FORWARD_DELAY) - return -ERANGE; + int err = -ERANGE; spin_lock_bh(&br->lock); + if (br->stp_enabled != BR_NO_STP && + (t < BR_MIN_FORWARD_DELAY || t > BR_MAX_FORWARD_DELAY)) + goto unlock; + __br_set_forward_delay(br, t); + err = 0; + +unlock: spin_unlock_bh(&br->lock); - return 0; + return err; } |